The Best GMC Repair in Duncan, AZ

Compare the highest-rated gmc repair mechanics in Duncan, Arizona. All shops are licensed, insured, and verified through our rigorous screening process.

#1

Morenci Auto & Diesel

4.7
(180 reviews)
Verified

A highly-regarded, full-service shop located in the neighboring town of Morenci, which is a primary service center for the Duncan area. They are known for their deep expertise in diesel performance and heavy-duty truck repair, making them a go-to for complex Duramax and Allison transmission issues. They cater extensively to mining, agricultural, and recreational towing clients.

1105 Commercial St, Morenci, AZ 85540

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Safford Truck & Auto Repair

4.5
(120 reviews)
Verified

A well-established provider in Safford, the Graham County seat, which is a common destination for Duncan residents seeking specialized automotive services. They have technicians with GM-specific training and are equipped to handle a wide range of issues from EcoTec engine diagnostics to advanced electronics and towing system maintenance.

2414 W Thatcher Blvd, Safford, AZ 85546

Specialties & Features

EcoTec engine diagnostics
Towing package maintenance
4WD service

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

The Truck Shop

4.3
(90 reviews)
Verified

As the name implies, this Safford-based shop focuses exclusively on light and heavy-duty trucks. They have a strong reputation for suspension work, particularly lift kits and leveling kits common on GMC Sierra HD models, and are proficient in 4WD system service and repair. They are a trusted local option for ongoing maintenance and performance upgrades.

1015 S 1st Ave, Safford, AZ 85546

Specialties & Features

Heavy-duty truck suspension
4WD and towing system service
General GMC maintenance

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Duncan

** The GMC repair market serving Duncan, Arizona, is characterized by its reliance on neighboring towns, primarily Morenci and Safford. Due to Duncan's small size and remote location, there are no dedicated GMC dealerships or high-volume specialty shops within the city limits itself. The competitive landscape is therefore regional. **Average Quality:** The quality of service is generally high, as these rural shops survive on reputation and word-of-mouth. They are accustomed to working on the trucks critical to the local mining, ranching, and construction industries. **Competition Level:** Competition is moderate among the handful of qualified shops in the broader area. There is no cut-throat pricing, as expertise in complex systems like Duramax and Allison is a significant barrier to entry, creating a niche for established providers. **Typical Pricing:** Labor rates are typically 10-20% lower than in major metropolitan areas like Phoenix or Tucson. However, for specialized diesel and transmission work, pricing is competitive with national averages due to the required expertise and equipment. Customers can expect to pay a premium for genuine GM parts, which these shops can source, compared to aftermarket alternatives.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All shops are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Duncan regulations and climate